Causes

Select the cause of the symptoms you are experiencing from the list below. This will take you to a page describing how to resolve it, and what the root cause is.

Certificates

• How to deal with certificates from non-trusted Certificate Authorities
• Revoked Certificates in Truststores Such as the cacerts Keystore or JSSE Truststore

Garbage Collection

• Frequent Full GCs on Poonam Parhar's blog
• Garbage Collection is Extremely Slow Due to System Swap Activity
• Troubleshooting Long Garbage Collection Pauses

Memory

• Troubleshooting Native Memory Leaks in Java Applications on Poonam Parhar's blog
• Troubleshooting Memory Leaks

Performance

• Troubleshooting Process Loops and Hangs
• Java Client Applications May Use Significantly More Memory and CPU After Upgrading to JDK 11 or Later from JDK 8 32-bit
• How to Troubleshoot Performance Problems Due to High CPU Utilization by a Java Application Thread

Truststores

• 'Could not derive key' or 'Could not decrypt key' Errors After Upgrading JDK or Applying the October 2022 CPU
• Truststore Issues When Migrating From JDK 8 to JDK 9+ With Bouncy Castle As the FIPS Provider (And Possibly Other Providers)